The homes of Georgene Jaback and Bob Woods of Joliet, and Janet Jaback of Elmwood Park did.
The Joliet couple improved their 50-year-old home with air sealing in the attic, basement and perimeter walls and insulation on the attic floor and in the conditioned basement. Their upgrades will reduce their air leakage rate by 35 percent, according to a press release issued by Will County.
Check out the article Joliet homeowners receive silver certification for energy savings to find out how they did it.
And if you are looking for even more energy savings check out Realgy Energy Services Natural Gas and Electricity rates, and lower your energy bills in a few minutes.